The Add/Remove Faces command allows faces to be added to or removed from the interior of an unstructured block. It requires a single block, either empty or initialized, to be selected prior to being available.
Select an unstructured block which you wish to add faces to or remove faces from, then Edit, Add/Remove Faces. To add a face, pick the domain or domains in the Display window which form a single face. When the face is complete, use Save Face or Save Baffle Face to save the definition of that face and move on to the next, if any. To remove a face, click Begin Removing Faces in the Block frame and select the face or faces to be removed. Finish by clicking End Removing Faces. All other commands are described in detail in the Unstructured Block Assembly section.
Note not all CAE solvers support baffles. Therefore, always check your solver documentation before you include any baffles in your grid. Adding or removing faces from an unstructured block will remove the interior volume points automatically. Your block will need to be initialized again based on the new face configuration.